# Slitherlink Mastery vs Shikaku

The clearest difference is in-app purchases: Shikaku at none against Slitherlink Mastery's 1. Shikaku also leads on ads (none vs shown). Slitherlink Mastery's advantage is update cadence (weekly vs every 3 weeks). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Slitherlink Mastery sells 1 one-off in-app purchase. Shikaku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Slitherlink Mastery against 4.4 for Shikaku. Both are backed by a comparable volume of ratings — 13 and 16 respectively. Written reviews are what separate them: 80% of Slitherlink Mastery's written reviews are positive against 76% of Shikaku's.

Slitherlink Mastery ships an update weekly, Shikaku every 3 weeks. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Slitherlink Mastery | Shikaku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (13 ratings)](https://appshunter.io/ios/app/slitherlink-mastery/id1434231923/reviews)** | [4.4 (16 ratings)](https://appshunter.io/ios/app/shikaku-rectangles/id6759557296/reviews) |
| Number of ratings | 13 | **16** |
| Positive reviews | **80.0% of reviews** | 76.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 93 MB | 29 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Camilo Fitzgerald](https://appshunter.io/developer/1434231922) | [BRIDGE DIGITAL EUROPE LIMITED](https://appshunter.io/developer/1782316772) |

## What reviewers say

### Slitherlink Mastery

[App page](https://appshunter.io/ios/app/slitherlink-mastery/id1434231923)

Solve addictive logic puzzles with a variety of difficulty levels and grid sizes. Features include touch-screen controls, line coloring, and instant error feedback. Unlock a master difficulty mode for an extra challenge.

**Highlights:** Multiple difficulty levels, Various puzzle sizes, Triangle, Square, and Hex puzzle types, Over 10,000 puzzles, Touch-screen pan and zoom, Instant error indications, Stats and high scores

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mastery Mode | $5.99 | one-time |


### Shikaku

[App page](https://appshunter.io/ios/app/shikaku-rectangles/id6759557296)

Engage in a minimalist logic puzzle game where you divide a grid into rectangular pieces. Each piece must contain a number representing its total area. Enjoy daily challenges, endless modes, and customizable themes.

**Highlights:** Grid division logic puzzles, Daily puzzle chapters, Infinite puzzle generation, Customizable themes, XP system for mastery, Ad-free experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Slitherlink Mastery free?

Slitherlink Mastery is free to download, with in-app purchases available.

### Is Shikaku free?

Shikaku is free to download, with no in-app purchases.

### Which has better reviews, Slitherlink Mastery or Shikaku?

Slitherlink Mastery is rated higher. Slitherlink Mastery averages 4.4 out of 5 from 13 ratings, while Shikaku averages 4.4 from 16 ratings.

### Do Slitherlink Mastery or Shikaku have ads?

Slitherlink Mastery shows ads; Shikaku does not.

### Which is updated more often, Slitherlink Mastery or Shikaku?

Slitherlink Mastery ships an update weekly, and Shikaku every 3 weeks. Most recently, Slitherlink Mastery was updated on October 25, 2026 and Shikaku on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*